EP0158199A1 - Tateur de fil - Google Patents

Tateur de fil Download PDF

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Publication number
EP0158199A1
EP0158199A1 EP85103451A EP85103451A EP0158199A1 EP 0158199 A1 EP0158199 A1 EP 0158199A1 EP 85103451 A EP85103451 A EP 85103451A EP 85103451 A EP85103451 A EP 85103451A EP 0158199 A1 EP0158199 A1 EP 0158199A1
Authority
EP
European Patent Office
Prior art keywords
thread
sensor according
closing body
nozzle
thread sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85103451A
Other languages
German (de)
English (en)
Inventor
Heinz Dr. E.H. Dipl.-Ing. Schippers
Erich Dr.-Ing. Lenk
Hermann Bremer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Barmag Barmer Maschinenfabrik AG filed Critical Barmag Barmer Maschinenfabrik AG
Publication of EP0158199A1 publication Critical patent/EP0158199A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/381—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using pneumatic or hydraulic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0328—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using pneumatic sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a thread sensor with a pneumatic output signal.
  • Such a thread guide is e.g. described in German Patent 28 32 930. It is a thread monitor that only senses the presence of the thread and, depending on the presence, emits a positive or negative signal.
  • the invention provides a thread sensor by means of which the thread tension can be measured continuously and which, depending on the thread tension, emits an analog output signal which changes continuously and preferably linearly with the tension.
  • a pneumatic pressure system which is supplied with air of a constant, preset pressure via a throttle, is relieved via a nozzle.
  • This nozzle is closed with a closing body loaded by the thread tension.
  • a pressure representing the thread tension is established in the printing system, which pressure can be measured directly or specified via a pressure-electrical converter of a data output device, data acquisition device, data processing device, controller or the like.
  • the closing body loaded with the thread tensile force is preferably a spring bar clamped on one side, which on the one hand is loaded with thread tensile force with its free end and on the other hand rests on the nozzle.
  • This spring rod is clamped in such a way that the spring rod forms a small gap with the nozzle with its free end in the unloaded position.
  • the system's susceptibility to vibrations is reduced or avoided entirely by connecting an air reservoir to the system.
  • Figures 3 to 3 show the thread sensor in three different views.
  • the nozzle 8 is clamped in a fixed holder 9 and can be axially adjusted in this holder, for example by thread 10.
  • a gap of the gap width S can be set between the head of the nozzle 8 and the free end of the spring bar 7 in the unloaded state, ie without applying the thread tension.
  • the gap width S changes with the thread tension force in the direction 6 as a result of the force acting on the thread guide 5.
  • the nozzle is connected to a pressure system, which is only shown schematically here.
  • the printing system is fed by the pressure source 11.
  • the pressure pl of this pressure source 11 is preset and kept constant.
  • the throttle 12 is provided, by means of which the air throughput is adapted to the outflow conditions at the nozzle.
  • the throttle is adjustable.
  • the pressure system opens on the one hand in the nozzle 8, 'which serves as an outlet.
  • the amount of air flowing out depends on the gap width S.
  • the gap width S is in turn dependent on the thread tension or the force 6 which is exerted on the thread guide 5.
  • a pressure p2 which is dependent on the thread tension is established in the printing system.
  • the pressure p2 By presetting the pressure pl, the presetting of the throttle 12, the presetting of the gap width S in the unloaded state, by the selection of the spring rod 7 and the setting of the clamping length L, it can be achieved that the pressure p2 prevailing in the system over a wide range with the thread tension increases linearly. In any case, there is a clear, constant dependency between the pressure p2 and the thread tension.
  • the pressure p2 is either via the pressure display device 13, which has a measuring scale calibrated for thread tension owns, displayed. Additionally or alternatively, a pressure / electrical converter 14 can be provided, the output signal of which can also be used directly for signaling or stored or processed in a data processing system or a control or regulating device.
  • the printing system is connected to a memory 15 in the bypass. In this way, undesirable fluctuations can be compensated for.
  • the vibration behavior is also due to the shape of the spring rod e.g. can be improved in that the spring rod 7 - as shown in Fig. 3 - is made with a narrower end. This prevents an unstable pressure cushion from forming below the spring rod, which leads to vibrations.
  • the spring rod can be drilled through in the area of the contact surface of the nozzle 8 in order to avoid the build-up of pressure.
  • Fig. 4 shows a winding device for chemical fibers schematically. There are three threads 1 to three spools 18 on a winding tube 20 on a winding spindle 19. All of the winding tubes 20 are clamped together on the winding spindle 19.
  • the threads run at a constant speed in the direction of arrow 2. They are each deflected between the thread guides 3 and 4 by the thread guide 5 seated on a spring bar 7. The threads then run through a top thread guide, which forms the tip of a so-called laying triangle, and are laid through the reciprocating traversing thread guide 17 to the bobbin 18.
  • the winding spindle is driven by an electric motor 21.
  • each thread deflected between the thread guides 3 and 4 is scanned by a nozzle 8.
  • Each of the nozzles 8 is connected to a common printing system.
  • This pressure system is fed from the common pressure source 11 with the constant preset pressure pl via throttle 12, which is adjustable.
  • throttle 12 which is adjustable.
  • This pressure p2 is applied via the converter 14 to a control device 22, by means of which the drive speed of the electric motor 21 is controlled in such a way that the winding speed of the threads and the mean value of the thread tensile forces remain essentially constant even as the bobbin diameter increases.
  • the thread sensor according to the invention in the regulation of the thread tension of a thread or wire running off a bobbin, e.g. in the production of thin steel cables, the so-called steel cord.
  • the wire supply coils, the run-off coils, mounted in the rotors with coil brakes, the braking force of which can be influenced by guiding the running wire via a dancer arm acting on the brake.
  • the thread according to the invention provides a solution to the technical problem resulting thereby sensor as part of the pneumatic braking force control on a spool brake acting on a payout spool in a stranding machine by tapping the tensile force in the running wire a measurement or output signal proportional to the control deviation, which is applied to the compressed air supply of the pneumatic drive of the spool brake.
  • the closing body can be formed by a spring bar, which is to be extended here beyond the nozzle interacting with it in order to receive an overflow roller for the running wire.
  • it can also be attached to a pivotable, one-armed or two-armed lever, preferably in the region of its pivot axis, which is loaded by the tensile force acting in the wire loop guided over a deflection roller and, on the other hand, by a preferably constant guiding force against the action of the wire loop is.
  • This guide which is opposite to the thread pulling force in the wire loop, can be applied mechanically by springs or the like or also pneumatically by means of a compressed air drive acted upon with constant pressure.
  • a closing body in the sense of the preceding text including the claims is the carrier of the impact surface struck by the air jet leaving the mouth of the nozzle.
  • the distance between the nozzle and the baffle is variable depending on the forces acting on the closing body, but may go to zero within the control range, but not zero.
  • FIG. 5 of the drawing shows an exemplary embodiment for the use of the thread sensor according to the invention for regulating the outlet tension of a wire.
  • the wire drawn off from the supply or drain spool 31 - with 32 and 33 are the maximum and the minimum drain diameter indicated - runs over a stationary deflection roller 39 to an overflow roller 40 fastened to the lever or dancer arm 41 and forms the wire loop 44.
  • the brake 35, 36 which is mounted at 58 and acts on the brake spool 31, is activated by the compressed air drive. 37, 38 is operated.
  • the dancer arm 41 has two arms in the example shown. While the wire loop 44 acts on one arm 43 via the overflow roller 40, a second compressed air drive 45, 48 acts on the other arm 42. Both forces are directed in opposite directions.
  • the second compressed air drive 45, 48 is fed via a line 55 from an air source which supplies an adjustable air pressure which maintains the set value. In this way, the force of the second compressed air drive acting as a manager is also kept at the set value.
  • the dancer arm 41 executes an oscillating movement against the constant force of the second compressed air drive 45, 48, which movement is transmitted to the impact surface of the closing body 47. This also varies the distance between the nozzle 46 and the baffle surface of the closing body 47.
  • the pressure fluctuations caused thereby act back via the line 54 to the outlet of the line 52 lying in front of the throttle 53 to the first compressed air drive 37, 38 and into this line 52 so that the pressure acting on the drive 37, 38 follows the pressure fluctuations in the sensor 46, 47 caused by the changes in distance, which means that the braking effect also changes accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
EP85103451A 1984-04-07 1985-03-23 Tateur de fil Withdrawn EP0158199A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3413275 1984-04-07
DE3413275 1984-04-07
DE3422308 1984-06-15
DE3422308 1984-06-15

Publications (1)

Publication Number Publication Date
EP0158199A1 true EP0158199A1 (fr) 1985-10-16

Family

ID=25820213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103451A Withdrawn EP0158199A1 (fr) 1984-04-07 1985-03-23 Tateur de fil

Country Status (2)

Country Link
US (1) US4629137A (fr)
EP (1) EP0158199A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812449A1 (de) * 1987-04-14 1988-11-03 Murata Machinery Ltd Verfahren und vorrichtung zur einstellung und regelung der spannung in einem spulautomaten
DE4129803A1 (de) * 1991-09-07 1993-03-11 Schlafhorst & Co W Fadenzugkraftsensor fuer eine textilmaschine
EP0534287A1 (fr) * 1991-09-25 1993-03-31 B a r m a g AG Machine de câblage
GB2320932A (en) * 1997-01-03 1998-07-08 New House Textiles Limited Yarn tension monitoring device
CN103496616A (zh) * 2013-08-30 2014-01-08 安徽省宁国天成电工有限公司 一种断线报警装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669177A5 (de) * 1986-03-17 1989-02-28 Schweiter Ag Maschf Verfahren und einrichtung zum umspulen eines fadens.
DE19537215C2 (de) * 1995-10-06 1999-09-02 Memminger Iro Gmbh Fadenliefergerät für elastische Garne
US6457667B1 (en) * 1998-02-04 2002-10-01 The Goodyear Tire And Rubber Company Method and apparatus for controlling the tension of wire being pulled from a wire spool on a bead wire letoff stand

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343181A (en) * 1940-04-03 1944-02-29 Winfield B Heinz Automatic tension control
US2938365A (en) * 1956-07-26 1960-05-31 Frederic H Lassiter Yarn length control means
FR1444141A (fr) * 1965-05-14 1966-07-01 Thermiguides Appareillage perfectionné pour le contrôle de postes multiples de régulation de tension de fil sur machines textiles
CH465462A (de) * 1967-04-15 1968-11-15 Spinnerei Karl Marx Veb Vorrichtung zum Aufspulen von Fäden
FR1586649A (fr) * 1968-03-27 1970-02-27
FR2232503A1 (fr) * 1973-06-06 1975-01-03 Bleiche Ag
GB2026557A (en) * 1978-07-27 1980-02-06 Palitex Project Co Gmbh Stop motions with delayed re-set

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE465462C (de) * 1928-09-26 Luftschiffbau Zeppelin G M B H Verfahren zur Anfahrt von Luftschiffen schwerer als Luft
US2964440A (en) * 1960-12-13 Process for preparing tobacco smoke
US2098422A (en) * 1935-06-14 1937-11-09 Us Rubber Prod Inc Constant tension control for elastic filaments
GB704672A (en) * 1950-10-27 1954-02-24 British Insulated Callenders Improvements in web-tensioning devices
GB1209315A (en) * 1967-04-21 1970-10-21 English Electric Co Ltd Fluidic operated thread tensioning devices
DE1785336B2 (de) * 1968-09-12 1974-06-06 Industrie-Werke Karlsruhe Augsburg Ag, 7500 Karlsruhe Vorrichtung zum Aufspulen von Chemiefäden

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343181A (en) * 1940-04-03 1944-02-29 Winfield B Heinz Automatic tension control
US2938365A (en) * 1956-07-26 1960-05-31 Frederic H Lassiter Yarn length control means
FR1444141A (fr) * 1965-05-14 1966-07-01 Thermiguides Appareillage perfectionné pour le contrôle de postes multiples de régulation de tension de fil sur machines textiles
CH465462A (de) * 1967-04-15 1968-11-15 Spinnerei Karl Marx Veb Vorrichtung zum Aufspulen von Fäden
FR1586649A (fr) * 1968-03-27 1970-02-27
FR2232503A1 (fr) * 1973-06-06 1975-01-03 Bleiche Ag
GB2026557A (en) * 1978-07-27 1980-02-06 Palitex Project Co Gmbh Stop motions with delayed re-set

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812449A1 (de) * 1987-04-14 1988-11-03 Murata Machinery Ltd Verfahren und vorrichtung zur einstellung und regelung der spannung in einem spulautomaten
DE4129803A1 (de) * 1991-09-07 1993-03-11 Schlafhorst & Co W Fadenzugkraftsensor fuer eine textilmaschine
US5329822A (en) * 1991-09-07 1994-07-19 W. Schlafhorst Ag & Co. Yarn tension sensor for a textile machine
EP0534287A1 (fr) * 1991-09-25 1993-03-31 B a r m a g AG Machine de câblage
GB2320932A (en) * 1997-01-03 1998-07-08 New House Textiles Limited Yarn tension monitoring device
CN103496616A (zh) * 2013-08-30 2014-01-08 安徽省宁国天成电工有限公司 一种断线报警装置

Also Published As

Publication number Publication date
US4629137A (en) 1986-12-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860617

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHIPPERS, HEINZ, DR. E.H., DIPL.-ING.

Inventor name: LENK, ERICH, DR.-ING.

Inventor name: BREMER, HERMANN